House drainage structure

Abstract

The application relates to a house drainage structure which comprises a house body and a roof, a water collecting groove is formed in the roof, a drainage pipe is arranged on the roof, the drainage pipe comprises a main pipe and a branch pipe, a filter is arranged on the roof, and the drainage structure further comprises a shunt assembly which comprises a connecting rod, a main floating block, a shunt block and a sleeve block. When the water level in a water storage tank reaches the upper limit of storage, if the rainfall continues, the water level in the water collecting groove rises, the main floating block is floated under the action of the buoyancy, the shunt block is driven to move upwards, and the shunt block abuts against the top wall of a sliding cavity. At this time, the perforation two and the water outlet two are communicated, the shunt block covers the water outlet one, the water in the water collecting groove flows into the branch pipe, and the excess rainwater is discharged to a sewer through the branch pipe, so that the rainwater is prevented from overflowing from the roof and flowing along the wall body, the wall body is prevented from being mildewed and the wall skin is prevented from falling off, and the wall surface maintenance cost is reduced.

Description

Technical Field

[0001] This application relates to the field of housing construction, and in particular to a housing drainage structure. Background Technology

[0002] The building drainage system is an important component of the building structure. Its performance directly affects the building's service life, safety, and living comfort. An efficient and reliable drainage system can quickly remove water from the roof and prevent structural damage, mold growth in the interior decoration, and foundation settlement caused by rainwater leakage.

[0003] For example, the utility model patent with patent publication number CN211691119U discloses a drainage structure for a building, including a drainage pipe installed through the building. One end of the drainage pipe is located on the roof of the building, and the other end is connected to a water storage tank. The water storage tank is connected to a toilet flushing tank. A filter screen is installed on the drainage pipe. The filter screen is slidably connected to the drainage pipe and can extend out of the drainage pipe. The filter screen is connected to a lifting mechanism. An impeller is installed inside the drainage pipe. The impeller is driven by the lifting mechanism to drive the filter screen to extend out or into the drainage pipe.

[0004] With the above-mentioned building drainage structure, during rainfall, rainwater flows into the storage tank along the drainage pipes to complete the collection and storage of rainwater. When the rainfall is large or the rainfall lasts for a long time, the water level inside the storage tank can easily reach the storage limit quickly. If the rainfall continues at this time, the subsequent rainwater cannot continue to enter the storage tank and can only overflow the drainage pipes. The overflowing rainwater will flow down the wall, which may cause the wall to become moldy and the wall paint to peel off. This needs to be improved. Summary of the Invention

[0005] To address the issue that when the water level inside the storage tank reaches its maximum capacity, and if rainfall continues, rainwater overflowing from the drainage pipes will flow down the walls, potentially causing mold and peeling paint, this application provides a building drainage structure.

[0006] This application provides a building drainage structure, which adopts the following technical solution:

[0007] A building drainage structure includes a building body and an eaves provided on the building body. A water collection trough is provided on the eaves, and a drain pipe is provided on the eaves. A water storage tank is provided on the drain pipe, and the drain pipe connects the water collection trough and the water storage tank. The drain pipe includes a main pipe provided on the eaves and a branch pipe provided on the main pipe. The main pipe connects the water collection trough and the water storage tank, and the branch pipe connects to the main pipe, with the end of the branch pipe away from the main pipe facing the sewer. A filter element is provided on the eaves, and the filter element is located in the water collection trough and covers the main pipe.

[0008] It also includes a diversion assembly, which includes a connecting rod that slides and rises on the filter element, a main float block disposed on the connecting rod, a diversion block and a sleeve block. The main float block is located in the water collection tank and above the filter element. The sleeve block is located in the main pipe and fits against the inner wall of the main pipe. The connecting rod passes through the sleeve block and is slidably connected to the sleeve block. The sleeve block has a sliding cavity, a through hole one, a water outlet one and a water outlet two. The through hole one is located on the side of the sliding cavity near the filter element and communicates with the sliding cavity. The water outlet one is located on the side of the water outlet two away from the filter element, and the water outlet one communicates with the main pipe and the sliding cavity. The water outlet two communicates with the branch pipe and the sliding cavity.

[0009] The diversion block is located inside the sliding cavity. The diversion block and the sleeve block are spliced ​​together to form the diversion cavity. The diversion block has a second through hole, a first through hole, and a second through hole. The second through hole connects the sliding cavity and the diversion cavity. The first through hole and the second through hole both connect to the diversion cavity. The first through hole connects to the first outlet, and the second through hole connects to the second outlet. When the diversion block abuts against the bottom wall of the sliding cavity, the first through hole connects to the first outlet, and the diversion block covers the second outlet. When the diversion block abuts against the top wall of the sliding cavity, the second through hole connects to the second outlet, and the diversion block covers the first outlet.

[0010] By adopting the above technical solution, when the water level inside the storage tank has not reached the storage limit, the diverter block abuts against the bottom wall of the sliding cavity under the action of gravity. At this time, the perforation one and the outlet one are connected, and the diverter block covers the outlet two. The water in the collection tank flows into the storage tank for collection through the main pipe, through hole one, sliding cavity, through hole two, diverter cavity, through hole one, and outlet one. When the water level inside the storage tank reaches the storage limit, if rainfall continues, the water level in the collection tank rises, and the main float block, under the action of buoyancy... The water flows upward and downward, and the diversion block moves upward through the connecting rod until it abuts the top wall of the sliding cavity. At this time, the second perforation and the second outlet are connected, and the diversion block covers the first outlet. The water in the collection tank flows through the main pipe, the first through hole, the sliding cavity, the second through hole, the diversion cavity, the second through hole, and the second outlet into the branch pipe. Then, the excess rainwater is discharged into the sewer through the branch pipe, which reduces the situation where rainwater overflows from the eaves and flows down the wall, causing the wall to become moldy and the wall paint to peel off. This helps to reduce the cost of wall maintenance.

[0011] Optionally, the filter element has a groove on the side near the main pipe, the groove is connected to the main pipe, the outer wall of the filter element has a plurality of filter holes circumferentially, the filter holes are connected to the groove, the filter element has an inclined surface, the inclined surface is located below the filter holes and is arranged around the outer periphery of the filter element, the inclined surface is inclined downward and outward.

[0012] By adopting the above technical solution, rainwater enters the groove through the filter holes and then flows into the main pipe. Debris is intercepted on the outside of the filter element, and the debris slides off the surface of the filter element onto the slope as it is washed by the rainwater and then mixes into the accumulated water, which reduces the situation of debris clogging the filter holes and helps to improve drainage efficiency.

[0013] Optionally, the lower end face of the main float is provided with a magnetic block one, a vertical pole is raised and lowered and slidable on the eaves, the filter element is passed through the vertical pole, a secondary float is provided on the vertical pole, the secondary float is located between the main float and the filter element, and a magnetic block two is provided on the upper end face of the secondary float, the magnetic blocks two and the magnetic blocks one are magnetically repulsive.

[0014] By adopting the above technical solution, when the water level in the collection tank rises, the float rises with the water level, and the magnetic block two and magnetic block one generate a repulsive force, which instantly applies an upward thrust to the main float, breaking the static friction balance of the main float, making the main float rise quickly, responding faster, and reducing the risk of mechanical jamming.

[0015] Optionally, an elastic element is provided between the float and the filter element.

[0016] By adopting the above technical solution, the elastic element applies a downward pulling force when the float rises, making it less likely for the elastic element to fluctuate frequently due to the water surface fluctuation in the collection tank. This improves the stability of the main float's action triggered by the secondary float. The elastic element can also assist the secondary float in resetting, reducing the possibility of the secondary float getting stuck or delayed in falling due to impurities on its surface or friction between the secondary float and the filter element.

[0017] Optionally, the filter element is provided with several bolts, which are threadedly connected to the eaves. The filter element is provided with a first clearance hole and a second clearance hole. The first clearance hole is for the connecting rod to pass through, and the second clearance hole is for the upright to pass through. The main float is provided with a first threaded groove for the connecting rod to be threadedly connected, and the secondary float is provided with a second threaded groove for the upright to be threadedly connected.

[0018] By adopting the above technical solution, during installation, the connecting rod, diverter block, and sleeve block can be placed into the main pipe. The lower end of the sleeve block abuts against the inner wall of the main pipe to achieve limiting. Then, the connecting rod is passed through the first clearance hole and the upright is passed through the second clearance hole. Then, the bolts are threaded to the eaves to realize the installation of the filter element on the eaves. Next, the main float block is sleeved on the connecting rod and the main float block is twisted so that the connecting rod is threaded into the first thread groove to realize the installation of the main float block on the connecting rod. Then, the secondary float block is sleeved on the upright and the secondary float block is twisted so that the upright is threaded into the second thread groove to realize the installation of the secondary float block on the upright. The operation is simple.

[0019] Optionally, a limiting block is provided on the inner wall of the sliding cavity, and a limiting groove is provided on the diversion block, with the limiting block located within the limiting groove.

[0020] By adopting the above technical solution, a limiting block and a limiting groove are set. The limiting block abuts against the inner wall of the limiting groove to limit the flow divider, so that when the connecting rod drives the flow divider to move, the perforation one and the outlet one are aligned / the perforation two and the outlet two are aligned.

[0021] Optionally, the connecting rod includes a rod body that slides and rises on the filter element and a second limiting block provided on the rod body. The diverting block and the main float block are provided on the rod body. The first clearance hole is for the rod body to pass through, and the first threaded groove is for the rod body to be threadedly connected. The filter element has a second limiting groove for accommodating the second limiting block, and the second limiting groove is connected to the first clearance hole.

[0022] By adopting the above technical solution, a second limiting block and a second limiting groove are set. The second limiting block abuts against the inner wall of the second limiting groove, thereby limiting the sleeve block to ensure that when the sleeve block is located in the main pipe, the first outlet is connected to the main pipe and the second outlet is connected to the branch pipe.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. When the water level inside the water tank reaches the upper limit of storage, if the rainfall continues, the water level in the water collection tank will rise. The main float will float up under the action of buoyancy, which will drive the diversion block to move up until the diversion block abuts the top wall of the sliding cavity. At this time, the second perforation and the second outlet are connected, the diversion block covers the first outlet, and the water in the water collection tank flows into the branch pipe. Then, the excess rainwater is discharged into the sewer through the branch pipe. This reduces the situation where rainwater overflows from the eaves and flows down the wall, causing the wall to become moldy and the wall paint to peel off. This helps to reduce the cost of wall maintenance.

[0025] 2. Rainwater enters the groove through the filter holes and then flows into the main pipe. Debris is intercepted on the outside of the filter element, and the debris is continuously washed off the surface of the filter element by the rainwater and slides down to the slope and mixes into the water. This reduces the situation of debris clogging the filter holes and helps to improve drainage efficiency.

[0026] 3. When the water level in the collection tank rises, the float rises with the water level, and the magnetic block two and magnetic block one generate a repulsive force, which instantly applies an upward thrust to the main float, breaking the static friction balance of the main float, making the main float rise quickly, responding faster, and reducing the risk of mechanical jamming. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of an embodiment of this application.

[0028] Figure 2This is a partial cross-sectional view of an embodiment of this application, mainly showing the structure of the shunt component.

[0029] Figure 3 for Figure 2 The enlarged view of section A mainly shows the structure of thread groove one and thread groove two.

[0030] Figure 4 This is a partial structural diagram of an embodiment of this application, mainly showing the structure of the first clearance hole and the second limiting groove.

[0031] Figure 5 for Figure 2 The enlarged view of section B mainly shows the structure of outlet one, outlet two, perforation one, and perforation two.

[0032] Figure 6 This is a partial structural diagram of an embodiment of this application, mainly showing the structure of the limiting block one and the limiting groove one.

[0033] Explanation of reference numerals in the attached drawings: 1. Main body of the building; 2. Eaves; 21. Water collection trough; 3. Diversion assembly; 31. Connecting rod; 311. Rod body; 312. Limiting block two; 32. Main float block; 321. Threaded groove one; 33. Diversion block; 331. Limiting groove one; 332. Through hole two; 333. Through hole one; 334. Through hole two; 34. Sleeve block; 341. Sliding cavity; 342. Through hole one; 343. Water outlet one; 3 44. Outlet 2; 4. Drain pipe; 41. Main pipe; 42. Branch pipe; 5. Water storage tank; 6. Filter element; 61. Groove; 62. Filter hole; 63. Clearance hole 1; 64. Limiting groove 2; 65. Clearance hole 2; 7. Inclined surface; 8. Bolt; 9. Magnetic block 1; 10. Limiting block 1; 11. Diverting cavity; 12. Upright rod; 13. Float block; 131. Threaded groove 2; 14. Magnetic block 2; 15. Elastic element. Detailed Implementation

[0034] The following is in conjunction with the appendix Figures 1-6 This application will be described in further detail.

[0035] This application discloses a building drainage structure. See also... Figures 1-2 The building drainage structure includes the building body 1, the eaves 2 and the diversion component 3. The eaves 2 are set around the outer periphery of the building body 1 and fixed to the building body 1. A water collection trough 21 is opened on the upper end face of the eaves 2, and the water collection trough 21 is set around the outer periphery of the building body 1.

[0036] See Figures 1-2A drain pipe 4 is fixed on the eaves 2. The drain pipe 4 is located below the eaves 2. The drain pipe 4 includes a main pipe 41 and a branch pipe 42. The main pipe 41 is fixed on the eaves 2. A water storage tank 5 is fixed at the lower end of the main pipe 41. The main pipe 41 connects the water collection trough 21 and the water storage tank 5. One end of the branch pipe 42 is fixedly connected to the main pipe 41, and the branch pipe 42 is connected to the main pipe 41. The end of the branch pipe 42 away from the main pipe 41 faces the sewer. In this embodiment, both the main pipe 41 and the branch pipe 42 are round pipes.

[0037] See Figures 1-4 A filter element 6 is provided on the eaves 2. The filter element 6 is located in the water collection tank 21 and covers the main pipe 41. A groove 61 is provided on the side of the filter element 6 near the main pipe 41. The groove 61 is connected to the main pipe 41. A number of filter holes 62 are provided on the outer wall of the filter element 6. The filter holes 62 are evenly spaced circumferentially and vertically along the outer periphery of the filter element 6. The filter holes 62 are connected to the groove 61. An inclined surface 7 is formed on the outer wall of the filter element 6. The inclined surface 7 is located below the filter holes 62 and is arranged around the outer periphery of the filter element 6. The inclined surface 7 is inclined downward and outward. A number of bolts 8 are passed through the filter element 6. The bolts 8 are evenly spaced around the outer periphery of the inclined surface 7. Each bolt 8 is threaded to the eaves 2. In this embodiment, the filter element 6 is a filter block.

[0038] See Figures 1-4 The filter element 6 has a clearance hole 63 and a limiting groove 64 on its upper end surface. Both the clearance hole 63 and the limiting groove 64 vertically penetrate the filter element 6 and are connected to the groove 61. The flow diversion assembly 3 includes a connecting rod 31, a main float 32, a flow diversion block 33, and a sleeve block 34. The connecting rod 31 includes a rod body 311 and a limiting block 312. The clearance hole 63 allows the rod body 311 to pass through. The rod 311 passes through the clearance hole 63 and slides up and down on the filter element 6. The limiting block 312 is located on one side of the rod 311 along the horizontal direction and is fixedly connected to the rod 311. The length direction of the limiting block 312 is parallel to the length direction of the rod 311. The limiting groove 64 is used to accommodate the limiting block 312. The limiting block 312 abuts against the inner wall of the limiting groove 64 to limit the connecting rod 31 and prevent the connecting rod 31 from rotating relative to the filter element 6.

[0039] See Figures 1-4 The main float 32 is located inside the water collection tank 21 and above the filter element 6. The lower end face of the main float 32 is provided with a threaded groove 321 for the rod body 311 to be threaded. The lower end face of the main float 32 is also fixed with a magnetic block 9, which is arranged around the outer periphery of the threaded groove 321.

[0040] See Figures 1-6The sleeve 34 is located inside the main pipe 41 and fits against the inner wall of the main pipe 41. The lower end of the sleeve 34 abuts against the inner wall of the main pipe 41 to achieve a limiting position. A sliding cavity 341 is formed inside the sleeve 34. The lower end of the rod 311 passes through the sleeve 34 and extends into the limiting cavity. The rod 311 and the sleeve 34 are slidably connected. Several through holes 342 are formed on the outer wall of the sleeve 34. The several through holes 342 are located in the sliding cavity 341 near the filter element. The filter element 6 is evenly spaced around the outer periphery of the rod 311 on one side. The through hole 342 and the sliding cavity 341 are connected. The outer wall of the sleeve block 34 is also provided with a water outlet 343 and a water outlet 344. The water outlet 343 is located on the side of the water outlet 344 away from the filter element 6. The water outlet 343 is connected to the main pipe 41 and the sliding cavity 341. The water outlet 344 is connected to the branch pipe 42 and the sliding cavity 341.

[0041] See Figures 1-6 The diverter block 33 is located inside the sliding cavity 341 and fits against the inner peripheral wall of the sliding cavity 341. The diverter block 33 and the rod body 311 are fixedly connected at the ends away from the main float block 32. A limit block 10 is fixed on the inner wall of the sliding cavity 341. A limit groove 331 is opened on the outer wall of the diverter block 33. The limit groove 331 penetrates the diverter block 33 vertically. The limit block 10 is located inside the limit groove 331.

[0042] See Figures 1-6 The diverter block 33 and the sleeve block 34 are spliced ​​to form a diverter cavity 11. Several through holes 332 are opened on the end face of the diverter block 33 near the filter element 6. These through holes 332 are evenly spaced circumferentially around the outer periphery of the rod body 311, and connect the sliding cavity 341 and the diverter cavity 11. A first through hole 333 and a second through hole 334 are also opened on the outer wall of the diverter block 33. The first through hole 333 is located on the side of the second through hole 334 away from the filter element 6. Both perforation 33 and perforation 334 are connected to the diversion cavity 11. Perforation 333 is used to connect to outlet 343, and perforation 334 is used to connect to outlet 344. When the diversion block 33 abuts against the bottom wall of the sliding cavity 341, perforation 333 connects to outlet 343, and the diversion block 33 covers outlet 344. When the diversion block 33 abuts against the top wall of the sliding cavity 341, perforation 334 connects to outlet 344, and the diversion block 33 covers outlet 343.

[0043] See Figures 1-6The filter element 6 has a second clearance hole 65, which vertically penetrates the filter element 6 and is connected to the groove 61. A vertical rod 12 is slidably raised and lowered on the eaves 2. The lower end of the vertical rod 12 passes through the bottom wall of the water collection tank 21 and is slidably connected to the eaves 2. The clearance hole 65 allows the vertical rod 12 to pass through. A secondary float 13 is provided on the vertical rod 12. The secondary float 13 is located between the main float 32 and the filter element 6. A threaded groove 131 is provided on the lower end face of the secondary float 13. The threaded groove 131 allows the vertical rod 12 to be threadedly connected. A magnetic block 14 is fixed on the upper end face of the secondary float 13. The magnetic block 14 is located below the magnetic block 9, and the magnetic properties of the magnetic block 14 and the magnetic block 9 are repulsive.

[0044] See Figures 1-6 An elastic element 15 is fixed between the float 13 and the filter element 6. The elastic element 15 is sleeved on the outside of the upright 12. The opposite ends of the elastic element 15 are fixedly connected to the float 13 and the filter element 6 respectively. In this embodiment, the elastic element 15 is a spring.

[0045] In practical use, during installation, the connecting rod 31, the diverter block 33, and the sleeve block 34 can be placed into the main pipe 41. The lower end of the sleeve block 34 abuts against the inner wall of the main pipe 41 to achieve a limiting position. Then, the rod body 311 passes through the first relief hole 63, the second limiting block 312 passes through the second limiting groove 64, and the upright 12 passes through the second relief hole 65. Then, the bolts 8 are threaded onto the eaves 2 to achieve the installation of the filter element 6 on the eaves 2. Next, the main float block 32 is sleeved on the connecting rod 31, and the main float block 32 is twisted to make... The rod body 311 is threaded into the threaded groove 321 to install the main float 32 on the connecting rod 31. Then, the elastic element 15 is sleeved on the upright rod 12, and the secondary float 13 is sleeved on the upright rod 12. The secondary float 13 is twisted so that the upright rod 12 is threaded into the threaded groove 131 to install the secondary float 13 on the upright rod 12. Then, the two ends of the elastic element 15 are glued to the secondary float 13 and the filter element 6 to complete the installation of the filter element 6 and the diversion assembly 3.

[0046] The implementation principle of a building drainage structure in this application embodiment is as follows:

[0047] When the water level inside the water tank 5 does not reach the upper limit of storage, the diversion block 33 abuts against the bottom wall of the sliding cavity 341 under the action of gravity. At this time, the first perforation 333 and the first outlet 343 are connected, and the diversion block 33 covers the second outlet 344. The water in the water collection tank 21 flows into the water tank 5 for collection through the main pipe 41, the first through hole 342, the sliding cavity 341, the second through hole 332, the diversion cavity 11, the first through hole 333 and the first outlet 343.

[0048] When the water level inside the storage tank 5 reaches its storage limit, if rainfall continues, the water level in the collection tank 21 will rise. As the water level rises, the float 13 will rise with it, generating a repulsive force between the magnetic block 14 and the magnetic block 9. This instantaneously applies an upward thrust to the main float 32, breaking the static friction balance and causing it to rise rapidly. The main float 32, through the connecting rod 31, drives the diverter block 33 upward until it abuts the top wall of the sliding cavity 341. At this point, the perforation... 334 and outlet 2 344 are connected, and the diversion block 33 covers outlet 1 343. The water in the water collection tank 21 flows through the main pipe 41, through hole 1 342, sliding cavity 341, through hole 2 332, diversion cavity 11, through hole 2 334 and outlet 2 344 into the branch pipe 42. Then, the excess rainwater is discharged to the sewer through the branch pipe 42, which reduces the situation where rainwater overflows from the eaves 2 and flows down the wall, causing the wall to become moldy and the wall paint to peel off, which helps to reduce the cost of wall maintenance.

[0049] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A house drainage structure, comprising a house body (1) and a roof ridge (2) arranged on the house body (1), a water collecting groove (21) being arranged on the roof ridge (2), a drain pipe (4) being arranged on the roof ridge (2), a water storage tank (5) being arranged on the drain pipe (4), the drain pipe (4) being communicated with the water collecting groove (21) and the water storage tank (5), characterized in that: The drain pipe (4) comprises a main pipe (41) arranged on the roof ridge (2) and a branch pipe (42) arranged on the main pipe (41), the main pipe (41) is communicated with the water collecting groove (21) and the water storage tank (5), the branch pipe (42) is communicated with the main pipe (41), and the end of the branch pipe (42) away from the main pipe (41) is directed to the sewer, and the roof ridge (2) is provided with a filter (6), the filter (6) is located in the water collecting groove (21) and covers the main pipe (41); ​ Further comprising a shunt assembly (3), the shunt assembly (3) comprises a connecting rod (31) which is lifted and slides on the filter (6), a main float (32) arranged on the connecting rod (31), a shunt block (33) and a sleeve block (34), the main float (32) is located in the water collecting groove (21) and above the filter (6), the sleeve block (34) is located in the main pipe (41) and adheres to the inner wall of the main pipe (41), the connecting rod (31) penetrates the sleeve block (34) and is slidably connected with the sleeve block (34), the sleeve block (34) is provided with a sliding cavity (341), a through hole (342), a water outlet (343) and a water outlet (344), the through hole (342) is located on the side of the sliding cavity (341) close to the filter (6) and is communicated with the sliding cavity (341), the water outlet (343) is located on the side of the water outlet (344) away from the filter (6), and the water outlet (343) is communicated with the main pipe (41) and the sliding cavity (341), and the water outlet (344) is communicated with the branch pipe (42) and the sliding cavity (341); The shunt block (33) is located in the sliding cavity (341), the shunt block (33) and the sleeve block (34) are spliced to form a shunt cavity (11), the shunt block (33) is provided with a through hole (332), a perforation (333) and a perforation (334), the through hole (332) is communicated with the sliding cavity (341) and the shunt cavity (11), the perforation (333) and the perforation (334) are both communicated with the shunt cavity (11), the perforation (333) is used for communicating with the water outlet (343), the perforation (334) is used for communicating with the water outlet (344), when the shunt block (33) abuts against the bottom wall of the sliding cavity (341), the perforation (333) is communicated with the water outlet (343), and the shunt block (33) covers the water outlet (344), when the shunt block (33) abuts against the top wall of the sliding cavity (341), the perforation (334) is communicated with the water outlet (344), and the shunt block (33) covers the water outlet (343).

2. The house drainage structure according to claim 1, characterized by: The filter piece (6) is provided with a groove (61) on one side close to the main pipe (41), the groove (61) is communicated with the main pipe (41), a plurality of filter holes (62) are circumferentially arranged on the outer wall of the filter piece (6), the filter holes (62) are communicated with the groove (61), the filter piece (6) is provided with an inclined surface (7), the inclined surface (7) is arranged below the filter holes (62) and around the outer periphery of the filter piece (6), and the inclined surface (7) is inclined downward and outward.

3. The house drainage structure according to claim 2, characterized in that: The lower end surface of the main float (32) is provided with a magnetic block one (9), the roof (2) is provided with a vertical rod (12) which is lifted and slid, the vertical rod (12) penetrates the filter piece (6), the vertical rod (12) is provided with a slave float (13), the slave float (13) is located between the main float (32) and the filter piece (6), the upper end surface of the slave float (13) is provided with a magnetic block two (14), and the magnetic block two (14) and the magnetic block one (9) repel each other.

4. The house drainage structure according to claim 3, characterized in that: The slave float (13) and the filter piece (6) are provided with an elastic piece (15).

5. The house drainage structure according to claim 4, characterized in that: A plurality of bolts (8) are arranged on the filter piece (6), the bolts (8) are threadedly connected with the roof (2), the filter piece (6) is provided with a first displacement hole (63) and a second displacement hole (65), the first displacement hole (63) is arranged for the connecting rod (31) to penetrate, the second displacement hole (65) is arranged for the vertical rod (12) to penetrate, the main float (32) is provided with a first threaded groove (321) for the connecting rod (31) to threadedly connect, and the slave float (13) is provided with a second threaded groove (131) for the vertical rod (12) to threadedly connect.

6. The house drainage structure according to claim 5, characterized in that: The inner wall of the sliding cavity (341) is provided with a limiting block one (10), the shunt block (33) is provided with a limiting groove one (331), and the limiting block one (10) is located in the limiting groove one (331).

7. A house drainage structure according to claim 6, characterised in that: The connecting rod (31) comprises a rod body (311) which is lifted and slid on the filter piece (6) and a limiting block two (312) arranged on the rod body (311), the shunt block (33) and the main float (32) are arranged on the rod body (311), the first displacement hole (63) is arranged for the rod body (311) to penetrate, the first threaded groove (321) is arranged for the rod body (311) to threadedly connect, the filter piece (6) is provided with a limiting groove two (64) for accommodating the limiting block two (312), and the limiting groove two (64) is communicated with the first displacement hole (63).

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